Ключевые слова: backgrounds, box, cable, century, chains, cold, component, computer, concepts, connection, construction, control, coolant, crimper, dimensional, electric, electrical, electrician, electricity, electronics, energy, engineer, equipment, flash, fuse, hands, household, industry, intensity, light, line, machinery, metal, multimeter, network, panel, power, repairing, row, science, striped, supply, switch, technician, technology, textured, tool, tube, work,